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CAD tip CAD tip # 12215:

Question CAD 
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Q - question

How to change truecolor DWG objects to indexed ACI colors?

A - answer DWG drawings containing entities with truecolors can be complicated to process, filter, plot or assign plot styles (e.g. monochrome). Such drawings are e.g. generated from Inventor (saved as a "DWG for AutoCAD").

You can easily recolor such drawings to nearest indexed (ACI) colors from the AutoCAD 256-color palette. Download the SetACIcolor freeware LISP utility from, load it into your AutoCAD with APPLOAD and type the SETACICOLOR command. Select the objects (or All) to convert and this tool will replace all individually colored "truecolor" entities (including those nested in blocks or in locked layers) to the nearest indexed color hue.

Sample - a photo converted to truecolor 2Dsolid DWG "pixels" with ImgConvert and the solids then converted from truecolor to ACI colors:

see DWG block

100% *  CAD 
22.4.2019    373×  
applies to: AutoCAD · Inventor ·

See also:
Tip 11714:How to assign a RAL color to a DWG object and get its ACI equivalent?
Tip 10071:How to recolor layers from ACI to truecolor?
Tip 9318:Material list on isometric drawings not printed black-and-white.
Tip 8128:How to quickly get the real color of a drawing entity?
Tip 7969:Black and white printing of DWG files saved from Inventor.

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After installing the update Inventor 2019.4, the Nesting Utility keeps unloading. « | » How to set bitmap transparency in an Inventor drawing.

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